<?php 
	include_once('Base.class.php');
	class quickSort extends Base{
		public function qSort($arr){
			if ($start>=$end) {
				return $arr;
			}

			//哨兵
			$
			$left = $start;
			$right = $end;
			while ( <= 10) {
				# code...
			}
		}
	}

	$arr = array('2','22','1','23','4');
 ?>